Invention Grant
- Patent Title: Image forming apparatus capable of setting a parameter used in forming an image based on a detected change in a value of tint
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Application No.: US15629388Application Date: 2017-06-21
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Publication No.: US10168634B2Publication Date: 2019-01-01
- Inventor: Akihiko Uchiyama
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2016-126720 20160627
- Main IPC: G03G15/01
- IPC: G03G15/01 ; G03G15/00

Abstract:
An image forming apparatus includes a CPU configured to change a parameter value used to control a developer bearing amount and form a plurality of patches for different parameter values changed, and a color sensor configured to measure the plurality of patches thereby acquiring color information thereof. The CPU detects, from values of color information of the plurality of patches, a value of the color information at which a change greater than or equal to a predetermined threshold value occurs, and the CPU sets a parameter used in forming an image based on the detected value of color information.
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